Air Compressor Pump Lubrication Type Splash Lubricated Number of Stages 2 Maximum Output Power 5 hp Free Air Flow Rate @ Maximum Pressure 9.7/17.3 cfm @ 175 psi Number of Cylinders 2 Maximum Operating Pressure 175 psi Flywheel Diameter 16 1/2 in Flywheel Included Yes Pump Speed 734 RPM Construction Cast Iron Groove Section B Number of Grooves 2 Valve Type Disc Valve Material Swedish Steel Rotation CCW Stroke Length 3 in